In establishing current mathematical model near the closuregap, two-dimensional model is usually adopted.
建立截流龙口附近的水流数学模型，多采用平面二维模型。
2
In this micrograph of a dorsal closure in a fruit-fly embryo, the protein actin is marked red, prominent around the gap in the epithelial cells.
这是一只果蝇背向闭合行为的显微图片，其中被涂成了红色的蛋白质活跃于皮层细胞的勾缝四周。
3
A double hook closure system and the known Clamshell design bid protection against foreign objects unintentionally penetrating the gap between keyboard and display.